Horny as hell, dropping spades — it maybe could lead to this (4,2,3,3)

I believe the answer is:

roll in the hay

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'lead to this' is the definition.
The definition suggests a singular noun which matches the answer.

'horny as hell dropping spades it maybe' is the wordplay.
'dropping' is a deletion indicator.
'spades' becomes 's' (abbreviation in card games).
'maybe' indicates anagramming the letters.
'horny'+'as'+'hell'='hornyashell'
'hornyashell' with 's' taken away is 'hornyahell'.
'hornyahell'+'it'='hornyahellit'
'hornyahellit' anagrammed gives 'ROLL IN THE HAY'.

'could' acts as a link.

Can you help me to learn more?

(Another definition for roll in the hay that I've seen is " Rural canoodling".)

I've seen this clue in The Guardian.

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